﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string a = "abc";
            string b = "a";
            Console.WriteLine(a.Contains(b));
            Console.ReadKey();

        }
    }
}
